AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

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mrsecman
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AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by mrsecman » Thu 22 Feb, 2018 5:39 pm

All. Greetings. There I was traveling through the hills toward a client site when a great grinding sound began emanating from under the hood. Them a continual thunk and sounds of grinding metal screeching and a sporadic metal knocking sound. When I arrived at site a few moments later, It didn't take long to identify the sound as a shattered air compressor. Shattered in the sense that if was burning itself internally (electrical smell) and bits of metal had popped off. I disconnected it and now the rebuild of the system begins.

A couple questions:

Easy way to identify part for a quote? I want to acquire one without paying a wholesale margin. This is going to be the single most expensive part.

Any value in replacing the condenser? Or upgrading it? Considering removal and full clean.

Aux Fan also near end of life - any good suppliers for a replacement? Needs to be same type and design.

Will keep you all posted on the developments and cost outcome - as it will be very useful to know for anyone affected in near future.
Last edited by mrsecman on Tue 03 Apr, 2018 9:05 pm, edited 1 time in total.
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Re: AirCon Compressor Total Shitzer Fail

Post by Ivanerrol » Fri 23 Feb, 2018 11:27 am

Very common problem. Do a search on AC problems. - Lots of info.

The cheapest option is to source a new one from the U.S. You will need the drier and seals as well. (third of the price)

I recently tried to source second hand compressors from various wreckers/second hand dealers. Had three that were faulty to some degree.
Gas recharge costs are ridiculous in Australia so it's worth getting the job done with new parts once.
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Re: AirCon Compressor Total Shitzer Fail

Post by MMWA » Fri 23 Feb, 2018 10:26 pm

The absolute cheapest seller on ebay will start with QE, just be aware that if you buy from them you may experience lengthy delivery times. Every time I've used them its taken about 50 days for delivery. By that time it wont even be hot anymore.

Other sellers, such as parts container are a bit more expensive but use much faster shipping. You get what you pay for, both sell OEM but it depends how patient you are. I start going postal around the 1 month mark.

Further to my ramblings,

I suggest professional services in this instance and absolutely NOT DIY. Grenading of a compressor will often mean the entire system has had shrapnel go through it. I advise NOT to install any of the new parts till the system has been flushed by said professionals. If it is not flushed properly, your new compressor will last about 5 minutes if you are lucky.
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Re: AirCon Compressor Total Shitzer Fail

Post by ngruzevs » Mon 26 Feb, 2018 2:35 pm

I've just replaced my Nippon Air compressor with a Denso, Found it difficult to find a compressor that would mount on existing brackets, had to return first two before I found one that would fit.

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Re: AirCon Compressor Total Shitzer Fail

Post by newMercowner69 » Tue 27 Feb, 2018 3:04 pm

Cool drive or HSY, Unique auto parts,
EBay,
Euro Car Parts.

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Re: AirCon Compressor Total Shitzer Fail

Post by Pete49 » Wed 28 Feb, 2018 2:05 pm

Friend of mine with an 82 W126 280SE swapped out his York for the chinese knock off, made a bracket to suit and fitted easy enough. Only thing he had to do was replacing the connections as the hoses had different nuts (threads) on them. The a/c bloke fixed it easy.
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Re: AirCon Compressor Total Shitzer Fail

Post by ngruzevs » Wed 28 Feb, 2018 2:41 pm

You shouldn't need to modify your bracket, you should be able to find the right compressor for your bracket. It took me sometime to find the correct compressor for my 85 280SE, sourced from Cooldrive. As previously stated the first two didn't fit and had to return them.
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Re: AirCon Compressor Total Shitzer Fail

Post by mrsecman » Wed 28 Feb, 2018 6:19 pm

Cost through a very reputable and referred service centre is just under 3K. That's with a fully shop re-manufactured hose, new GM A6 compressor (not re-man), and all other fittings and replacement gear including flush and so on, plus testing already done which will be deducted once we go ahead.

Given it's close to end of summer may well grab the parts first then execute down the track.

Thoughts on the pricing and method? I could grab a different compressor but to be honest, I don't see a huge saving there and that's not where the effort is anyway.

Considering giving the radiator a long needed replacement anyway and continuing with other project pieces ahead of finalising air con renewal by next summer.
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Re: AirCon Compressor Total Shitzer Fail

Post by ngruzevs » Thu 01 Mar, 2018 12:01 pm

It cost me just under $1200 for the whole job, this included a new compressor, receiver dryer and TX valve and costs for vacuuming out existing R134a and filling up.
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Re: AirCon Compressor Total Shitzer Fail

Post by mrsecman » Thu 01 Mar, 2018 4:58 pm

Where did you get that done? Was it NEW not re-con compressor? GM A6 is the killer here apparently, but so is the re-manufactured main hose off it. Uses a specific type. I have no reason to distrust the quote, comes highly recommended but high hourly rate.
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Re: AirCon Compressor Total Shitzer Fail

Post by ngruzevs » Thu 01 Mar, 2018 5:27 pm

Compressor was a brand new Denso HJ60, fitted like a glove. Re-reading invoice, cost $1450 (sorry)

Work was done at Gullwing Motors in Vermont. http://gullwingmotors.com.au/
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Re: AirCon Compressor Total Shitzer Fail

Post by mrsecman » Thu 01 Mar, 2018 11:34 pm

That Denso is an entirely different fitting to the GM A6 I see. Compressor here is probably the difference. And the hoses. The hose quoted is a triangular type feed off hose which combines to one type of fitting. Can't be more precise than that but not possible to get new apparently - needs remanufacturing in the shop.

GM A6 price differences online are only a couple hundred off once the dollar is converted, then shipping, so not much overall. Take about a grand for the compressor, a few hundred for the hose and other replacement parts, and the rest labour. Not sure where else I can save money at this stage. Could probably re-engineer for a cheaper compressor in future but may well run into same problem in future anyway!

Tricky.
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Re: AirCon Compressor Total Shitzer Fail

Post by pina4greg » Mon 05 Mar, 2018 2:09 am

just replaced my seized compressor on the w140 300se. denso from pelican parts USA. $398 plus a new receiver drier. had it installed for $450 here in perth. cost included vac out and regas. lucky no metal through the system. other than stuffing up the drive belt tensioner adjustment bolt the system is icy cold. pity we have not had any hot weather.
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Re: AirCon Compressor Total Shitzer Fail

Post by mrsecman » Fri 09 Mar, 2018 1:33 am

I suspect the cost differences I see here are around the older style big GM A6 compressor. I could probably retrofit and I may well do that as my approach (now that it's end of summer) is to drain the system and remove the hoses and all other parts for replacement as a first step. That will include the compressor. I'll remove the condenser myself for a full clean and renew and will also replace the auxiliary fan. I'll acquire the compressor around Winter time or retrofit, and come late Spring this year, I'll book it in to finish the job. Saves on the initial expense. Will keep everyone posted on the results.
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by mrsecman » Wed 28 Mar, 2018 2:20 am

All. Just had the GM A6 removed (blown per thread), and the hose removed, all other points capped off. Now investigating finding a bracket to suit a Denso type compressor, significantly lighter, more powerful, modern and more efficient. Will require easier hosing too. Project to pan out over Winter. Images and tests to follow folks!

Once I know more I'll put the word out for a suitable bracket.
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by mrsecman » Tue 03 Apr, 2018 9:42 pm

Thread updated to become upgrade project ongoing.

Any comments on how to effectively clean and renew the condenser? I'll be removing this and doing it in the next month or so.
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by John Green » Wed 04 Apr, 2018 10:32 am

mrsecman wrote:
Tue 03 Apr, 2018 9:42 pm
Thread updated to become upgrade project ongoing.

Any comments on how to effectively clean and renew the condenser? I'll be removing this and doing it in the next month or so.
Depending on what you mean by "clean" you might not be able to. When these systems run low on gas and are not so efficient the temperatures that the condensor has to deal with getting rid of increases to he point that the oil burns and lines the tubes of the compressor especially towards the bottom. There are plenty of flushing agents, bit they are designed to remove debris and excess oil, have never seen one that claims to remove the burnt on crap.
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by gazman » Wed 04 Apr, 2018 11:00 am

Condenser is a fairly cheap item online why not just replace
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by mrsecman » Wed 04 Apr, 2018 12:11 pm

gazman wrote:
Wed 04 Apr, 2018 11:00 am
Condenser is a fairly cheap item online why not just replace
Could do. Any value in any sort of condenser upgrade at all? Or go for stock replacement?
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by Ivanerrol » Wed 04 Apr, 2018 5:02 pm

Here's Scotty 'I hate Mercedes' Kilmer's take on AC systems

https://www.youtube.com/watch?v=U0O1mcnwjZs
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Re: AirCon Compressor Total Shitzer Fail - Now UPGRADE PROJECT

Post by Bartman4800 » Wed 04 Apr, 2018 7:27 pm

I agree,

I replaced the compressor on my 2008 VW Passat twice, after flushing.

The first time it seized after a few months, the second time the (brand new) compressor started to get noisy after 1 month....


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